[SMCARA] Antenna Modeling Software

[F. Veitch]

NEC-2, 3, and 4 use Method of Moments as do their derivatives.
 
I use Nittany Scientific NEC-Win specially modified for very large numbers
of segments. If you are doing large arrays or looking at interactions, this
provides very reproducible results that can be range verified
 
Ohio State has NEC-BSC (Basic Scattering Code) which is a very powerful code
that will handle reflections from dielectric surfaces. It is based on the
Geometrical Theory of Diffraction. Dr. Ron Marhefka (who used to be at Pax
River) is the developer and custodian. A very long time ago my group
modified this code to run on some of the first desk top computers instead of
mainframes. It also produces range verifiable results.

They all have their quirks - the devil is in the details as usual.

73
K3JYD
FM09qk

-----Original Message-----
From: smcara-bounces at mailman.qth.net [mailto:smcara-bounces at mailman.qth.net]
On Behalf Of Eric Heard
Sent: Tuesday, April 24, 2012 7:52 PM
To: SMCARA
Subject: [SMCARA] Antenna Modeling Software

Allen,
In the past I have used WIPL-D software which uses the method of moments to
calculate radiation patterns. Another piece of software was SAVANT which
uses the Shooting and bouncing rays method. I think most hams have goten
away with NEC which uses line segments method (i think thats right, anyone
correct me).
Eric
73 de N3UH, California, MD USA
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